Davenport.



' M GLUNB.

l k DAVENPORT. APPLICATION FILED DEO.14, 1911'.

so f fen# l. 1

[NVE/WOR.

` Michael CIL/71e lV/TNESSES:

Patented Nov.5, 1912.

50 pivotally connected with theouter end of the UNITED STATES PATENT OFFICE.

MICHAEL CLUNE, OF INDIANAPOLIS, INDIANA.

DAVENPORT.

Specification of Letters Patent,

Patented Nov. 5, 1912.

Application filed December 14, 1911. Serial No. 665,783.

description thereof, reference being had tothe accompanying drawings.

The object of this invention is to provide a folding sofa bed provided with a mattress frame composed of only two sections arranged to contain the mattress when folded so that the bed can be folded and unfolded without removing or replacing the mattress. Also the mattress frame at the joint of the sections is connected with the folding seat near its hinged side and the other side of the seat is connected with the upper section of the mattressframe so that the mattress frame will be unfolded and folded by the seat as it is opened out and folded up.

The nature of the invention will be understood by the accompanying drawings andV near one end so that it shows the mattress,

frame in end elevation. Fig. 2 is the same as Fig. 1 with the sofa bed unfolded. Fig. 3'

is a plan view of a portion of what is shown in Fig. 1, with the mattress removed and parts broken away and omitted. Fig. 4L is a detail view of the supporting connection between the seat and the outer edge of the outer section o`f the mattress frame. Figs. 5 and 6 are detail views of the telescopingbars for supporting the inner end of the lower section ofthe mattress frame. Fig. 7 is a detail of the leg for supporting the outer end of the v seat and its connection therewith. Fig. 8 is a plan view of Fig. 7. f

There is shown herein a main fra-me consisting of ends 10, a back 11, legs 12, and a front bar 13. There is a seat 14 hinged so that it can be opened out or folded up, as shown.. It is here shown connected with the front bar 13 by hinges 15, although it may be hinged to the ends 10, if desired, so far as this invention is concerned. Legs 16 are seat when unfolded so that the same will drop down by gravity into a vertical position as the seat is opened, and will serve to support the outer ledge ofk the seat and the parts supported bythe seat. This leg is pivedge when unfolded, a bar link 32 pivoted at oted to a plate 17 by a pin 18. 'The plate 17 1s secured to the-end of the seat and it has two oppositely located and inclined guide lugs 20 which engage the sides of the legs at lits upper end, as the seat is being unfolded,

for alining said leg to its vertical posit-ion; The leg has a vertical slot 21 through which vthe pin extends to permit the action mentioned.

The'mattress frame consists of two sections, an inner section 25 and an outer section 2G with their. adjacent ends or edges pivo-ted to each other and to a plate or post 27 extendingvdown from said seat 14 when folded or upward from the'seatwhen it is unfolded. A brace 127 entends -from the free end of said post 27Jto the plate 28 of' the seat 14 and longitudinal bar 29. The adjacent ends of the end bars of the sections of the mattress frame are curved toward each other, as shown, at their pivotal connection with the post 27, so that when said mattress frame sections are folded up, as seen in Fig. 1, there is ample space left between the sections of the mattress frame, say five' inches, for the. folded mattress 129'.' This enables said mattress frame to be'foldedand unfolded without removing. or replacing the mattress. At each end of each-section ofthe mattress frame there is a loop bar 30 to prevent the longitudinal displacement of the mattress.

rlhe seat 14 has at eachend, near itsouter one end thereto and pivotallv connected at the other end with the outer edge of the outer section 26 of the mattress frame. The form of this link bar32 is shown in Fig. L1. It hasa 'notch 33 withl a'pcontracted mouth adapted to engage a pin 311 on the mattress frame so that it can be disengaged, if ldesired,from the mattress frame' and the outer edge of the mattress frame lifted for the purpose of inserting bedding between the seat and the outer section of the mattress frame. A spring 35 tendsto hold said link: 32 from disengagement with its pin 34.

Said bars support the outer portion ofthe l los outer section of the mattress frame upon the? seat when unfolded and also when folded,

as shown in Figsal and 2. v

The lower end of the. spring 35 is secured' lto the link 32 below the notch33 and the;v

upper end is bent to hookbverthe pin34 and between its ends said spring: is twisted or coiled so that when the bent end s caught f ing movements 'of mattress `frame the over the pin 34, said pin will be held in the` notch. Lifting the upper end of said spring shortens the coiled portion and allows the hook to be disengaged from said pin.

The inner edge of the inner section of the mattress frame is, in its unfolded condition, supported by telescoping link bars 36 and 37. to each end of the mattress frame and the latter link bar-37 to each end of the main frame and below the mattress vframe so that said bars will be substantially vert-ical when 'the' mattress frame is unfolded.A One of said link bars has a longitudinal slot 38 through which a pin39 from the other link bar ex-l tends. 'Ihe last mentioned link I bar has flanges 40 which overlap the rst-mentioned link bar, whereby the link bars are slidably connected. In t-he unfolded condition, the link bars are as shown in Fig. 5, that is, c0ntracted"but during the folding and unfoldthe-inner section of the link bars have to slide I 4upon each other and in the folded position,

said link bars are substantially horizontal, as

' shown in Fig. l. Springs .4l and 42 connect the inner edge of the inner section 25 of the mattress` frame with ythe rear part of the endsv of the main frame so as to facilitate the l upward movement of the inner section of the y mattress frame. Y

I claim as my invention:

, l. 'A sofa bed includin'g amain frame, a seat pivoted-to' said. frame, a mattress frame composed of two sections with their adjacent ends curved toward each other when folded, apost secured to the seat with which of both sections of the mattress frame are pivoted so that t-he pivots at the two ends of thesofa'bed are in alinement with each other, movable means con- ,necting the innenseotionof the 'mattress frame with` the main frame ofthe sofa bed, and a connection' between the sea-tand outer section ofthe mattress framewhen'unfolded.

2. A sofa vbed' includingaA mainframe, a

Copies of'thiils patent may be"'olataned for ve cents each, by i fWashngtomD. C.

The former link bar 36 is pivoted lwith the inner sectionof the nected, telesoopin links pivotally connectmg the inner section of the mattress frame with the main frame, vided with means for limiting the-contracting movement thereof, and a connection between the seat and outer section of the mattress frame when unfolded.

3. A sofa bed including a main frame, a seat pivoted to said frame, a mattress frame aving inner and outer sections, a post secured to the seat with which bothsections of the mattress frame are `pivotally connected, telescoping links pivotallyl connected mattress frame and saidmain frame, one member of said .links being longitudinally slotted, -and the other member having a pin operating in said slot and also flanges loosely enveloplng said said links being profirst-mentioned link, and a connection i. be-t section of themattressdframe with the main frame, a supporting link pivoted to theA seat when unfolded-and having a notch in the free end of said link with aV contracted opening, a pin on the outersection of the mattress frame adapted to rest in the notch` 1n said link, and a spring for releasably holding said link on Said pin.

In witness whereof, I have hereunto affixed my signature in the presence of the witnesses herein named.

MICHAEL CLUNE.

` Witnesses:-

G. H. BoINK, E. H. MA-Yo.

addressing the "Commissioner of Patents, 

